Hebrews 5:11 There is much we have to say about this matter, but it is hard to explain to you, because you are so slow to understand.
12 There has been enough time for you to be teachers—yet you still need someone to teach you the first lessons of God’s message. Instead of eating solid food, you still have to drink milk.
13 Anyone who has to drink milk is still a child, without any experience in the matter of right and wrong.
14 Solid food, on the other hand, is for adults, who through practice are able to distinguish between good and evil.
This analogy that Paul uses here, explains to us how we are to grow in our faith. Babies in the natural world need milk for nourishment and is essential to the infant’s growth. The milk that is spoken of here is a spiritual comparison to the natural baby. Just as the natural baby starts out with milk, so does the spiritual baby. We all began as spiritual babies. Spiritual milk is the basics of Christianity, the work of the cross, the hope of the resurrection. But, we are to continue in our quest for knowledge and understanding of the redemptive work of Christ. A human baby is fed by his or her parents and their growth is a natural occurrence. However, for the spiritual baby, the growth is up to them .. To wean themselves from the milk to the solid foods of the truths of God. As the child of God begins to introduce themselves to solid food, they begin to have a deeper understanding and knowledge of the things of God. As they mature in their eating habits, the lines between right and wrong become clearer. The lines between what is good and what is evil become clearer. There are Christians that have been saved for years and remain as spiritual babies. Their thinking is that if God wants them to know, He will show them. If God has a problem with them, He will fix them. If God is unhappy with them, He will let them know. This is unscriptural. Scripture clearly tells us that our development in the things of God is up to us. We choose to go deeper. We choose to understand. We choose to learn and be taught. Paul never said our spiritual maturity was ‘Up to God’.